Steam-super heater



(No Model.)

J. W. REED.

STEAM SUPBRHEATBR.

No. 310,225. Patented Jan. 6, 1885.

Unrrsn STATES PATENT QFFICEO JOSEPH \V. REED, OF KALAMAZOO, llIICHlGAN.

' STEAM-SUPERHEATER.

SPECIFICATION forming part of Letters Patent No. 310,225, dated January6, 1885.

Application filed July 25,184. (No model.)

To aZZ whom, it may concern Be it known that I, J osnriir WV. REED, acitizen of the United States, residing at Kalamazoo, county ofKalamazoo, State of Michigan, have invented a new and useful Steam-Superheater, of which the following is a specification.

This invention has for its leading object a construction and arrangementof parts whereby the waste steam from the cylinder is circulated throughthe smoke-boX of a steam-boiler, or an equivalent heated chamber of asteamboiler, wherein said steam is superheated and thence passed intothe steam-chest for reuse.

A construction embodying this invention conslsts 1n a pipe leading fromthe cylinder waste-ports, passing well into the smoke-box,

and from thence leading to and connecting with the steam-chest of saidcylinder.

Detailed pecularities of the constructions of parts are hereinafterdescribed.

In the drawings, forming a part of this specification, Figure 1 is abroken end elevation of a railway-engine, the smoke-box being incross-section on a line near the vertical center; Fig. 2, a brokenhorizontal section, certain parts being left full; Fig. 3, an enlargedperspective of parts in Figs. 1 and 2; Fig. 4, an enlarged plan of partsin Fig. 2; and Fig. 5 is a rear end view of the cylinder and steamchestat the right of Fig. l enlarged.

This invention is illustrated in duplicate as connected with alocomotive-engine, the cylinders G G and steam-chests H H of which arein duplicate, as in Fig. 1; but the invention is applicable to a singleengine as well, either stationary or portable; hence the parts of theinvention will be described in the singular number.

The smoke-box B of a boiler is necessarily heated by the heat whichpasses therein out of the forward end of the boiler-fines c, and forthis reason I locate thesuperheating device in said box. Thecylinder-cocksi 'i are connected by a pipe, 1', provided with aT-coupling, c. A pipe, u, connects with this coupling and with theheater-pipe 1;, located in the smokebox B. The upper end of the pipeoconnects with a steam-heating chamber, R, suspended in the upper portionof the smoke-box. A heater-pipe, h, connects with the heatingchamber Rand passes out of the smokebox connecting with the steam'chest H. Theupper ends of the heater-pipes o h might form immediate connection witheach other, and thus dispense with the heating-chamber R; but I preferto use said chamber. The pipe at o is provided with a cock, 3/.

t is a crank connecting therewith. This crank is connected with apivoted lever, T, by a pivotally connecting-rod.

a: is a rod pivotally connected with the upper end of the lever T, (hereshown broken,) but which in use would be extended to the cab or otherconvenient place in reach of the operator.

The construction is provided with checkvalves at a, a, and i i. The cocky performs the office of the cooks usually located at the ports i i ofthe cylinder.

In the operation, when the engineer opens the cock y by means of thecrank and connecting means, the waste steam and water from the ends ofthe cylinder are forced through pipes to 11 into the heatingchamber Rand pass on thence through pipe h into the steam-chest H, the same beingsuperheated during said passage by the heat in the smokebox B. Bythismeans the lubricant used in the steam chest and cylinder is conveyedthrough the superheater with the steam back into the steanrchest again,thus by a continuous reuse effecting economy and a better working of theengine. The objectionable noise of escaping steam from thecylinder-cocks is obviated and the power of the engine improved. Thecheck-valve a prevents a return of steam into pipe u, and thecheck-valve a opens to admit the superheated steam into the steam-chestwhen the pressure is less in said chest than the pressure in pipe h,thus preventing the exit of any steam from the steam-chest into pipe h.I prefer to make the heater-pipe o spiral, as in Figs. 1 and 2, thussecuring a greater heating capacity, as the passage of steam is slower.The heatingchamber R is provided with vent pipes n n, terminating be lowthe mouth of the exhaust-pipe D, near the exhaust-ports a a of theengine. These vents relieve the heater-chamber R in case of an unduepressure of steam, and thus facilitate the passage of the steam throughthe superheater.

The heater-chamber R is provided with an under extension, f, into whichany sediment therein may settle, and which may be cleaned out byremoving the plug cl.

1? J? are the pipes which convey steam from the boiler into thesteam-chests. A steamgage is shown at S for testing the degree ofsteam-pressure in the superheater.

Having thus described my invention, what I claim as new is 1. Thecombination of a steam-chest, a cylinder, a smoke-box, and pipes leadingfrom the cylinder to the steam-chest, and passing through the smoke-boxand formed spiral in saidbox, substantially as set forth.

2. The combination of a steam-engine cylinder, steam-chest, smoke-box,and spiral pipes connecting the steam-chest and cylinder-ports andpassing through the smoke-box, said pipes being provided with suitablecocks and check-valves, substantially as set forth.

3. The combination, with the cylinder and steam -chest of asteam-engine, of a steamheating chamber suspended in the smoke-box ofthe boiler, said chamber provided with vent pipes and pipes connectingwith the steam-chest and cylinder and with said steamheating chamber,all substantially as set forth.

4. The combination, with a steam-heating chamber suspended in thesmoke-box of a steam-boiler, of arsteam-chest and cylinder, a pipeprovided with the spiral portion leading from the cylinder to saidchamber, and apipe leading from said chamber to the steam-chest,substantially as set forth.

5. The combination, with a cylinder and steamchest of an engine, of asteam-heating chamber suspended in the smoke-box of the boiler, saidchamber provided with the under extension, vent-pipes connectingtherewith, and pipes connecting said chamber and cylinder and steamchest, all substantially as set forth.

5 In testimony of the foregoing I have here unto subscribed my name inpresence of two witnesses.

JOSEPH XV. REED.

Vitnesses:

CHAS. V. CHASE, GEO. D. B. IIALL.

